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Imports System.Data.OleDb
    Inherits System.Windows.Forms.Form
   Dim myconnection As New OleDbConnection("provider=microsoft.jet.oledb.4.0;data source=" & Application.StartupPath & "\student0.mdb") ‘------------------------- Á´½ÓÊý¾Ý¿â
    Dim mycommand As OleDbCommand
    Dim mydatareader As OleDbDataReader
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myconnection.Open()
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        mydatareader = mycommand.ExecuteReader()


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Update Tab1
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using System.Reflection;
using System.Configuration;
using CoalTraffic.IDAL; namespace CoalTraffic.DALFactory
{
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    public void ExportExcel(DataTable dtData, string filename)
    {
        System.Web.UI.WebControls.DataGrid dgExport = null;
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